scholarly journals A topological quantum catalyst: the case of two-dimensional traversing nodal line states associated with high catalytic performance for the hydrogen evolution reaction

2021 ◽  
Vol 9 (39) ◽  
pp. 22453-22461
Author(s):  
Lirong Wang ◽  
Xiaoming Zhang ◽  
Weizhen Meng ◽  
Ying Liu ◽  
Xuefang Dai ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Catalytic Performance ◽  
Nodal Line ◽  
Two Dimensional ◽  
Topological Quantum

Cu2C2N4 sheet as a 2D topological quantum catalyst with high edge activity for the hydrogen evolution reaction.

scholarly journals Liquid-phase Exfoliated Two-dimensional Bi Nanosheet as a Durable Electrocatalyst for Hydrogen Evolution Reaction

2021 ◽  
Author(s):  
Chenguang Duan ◽  
Huating Liu ◽  
Zongyu Huang ◽  
Hui Qiao ◽  
Yang Zhou ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Large Scale ◽  
Hydrogen Adsorption ◽  
Theoretical Calculations ◽  
Cost Effective ◽  
Catalytic Performance ◽  
Hydrogen Energy ◽  
Two Dimensional

Abstract Electrocatalytic hydrogen evolution is an exercisable way to achieve large-scale application of hydrogen energy. It is of great significance to develop an effect, stable and cost-effective electrocatalyst. Here, we applied the two-dimensional (2D) bismuth (Bi) to the electrocatalytic hydrogen evolution, and proposed the strategies to enhance the catalytic performance of the catalyst. The exfoliated Bi nanosheets via sonication assisted liquid-phase exfoliation display higher electrocatalytic activity (overpotential of -958 mV vs RHE at 10 mA cm− 2) compared to the bulk counterpart. Theoretical calculations about Gibbs free energy from the hydrogen adsorption for 1 layer, 2 layers and 5 layers Bi also manifest the decrease of thickness is favorable for hydrogen evolution reaction (HER). To further evaluate the electrocatalytic performance of Bi nanosheets, the typical parameters measured in different H+ concentration (C[H+]) are carried out. The improved catalytic activity obtained in 0.5 M H2SO4 is attributed to enhancing the hydrogen adsorption and accelerating the charge transport on the surface of catalyst. Moreover, the durability of Bi nanosheets electrode has been texted, where the current is not evident fluctuation during the 40000 s electrolysis measurement indicating its excellent stability. The present work expands the application of Bi in the catalysis and provides the simple strategies to improve its hydrogen evolution performance.

scholarly journals A monodispersed CuPt alloy: synthesis and its superior catalytic performance in the hydrogen evolution reaction over a full pH range

RSC Advances ◽  
2021 ◽  
Vol 11 (21) ◽  
pp. 12470-12475
Author(s):  
Xinmei Liu ◽  
Chen Liang ◽  
Wenlong Yang ◽  
Chunyang Yang ◽  
Jiaqi Lin ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Stability ◽  
Low Cost ◽  
Catalytic Performance ◽  
Ph Range

An effective approach to achieve the low cost and high stability of electro-catalysts for HER.

Emerging two-dimensional nanomaterials for electrochemical hydrogen evolution

2017 ◽  
Vol 5 (18) ◽  
pp. 8187-8208 ◽  
Author(s):  
Yunxu Chen ◽  
Kena Yang ◽  
Bei Jiang ◽  
Jiaxu Li ◽  
Mengqi Zeng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Catalytic Performance ◽  
Two Dimensional

Various strategies for improving the catalytic performance of two dimensional nanomaterials for HER.

First-Principles Investigation of Two-Dimensional Covalent Organic Frameworks Electrocatalysts for Oxygen Evolution/Reduction and Hydrogen Evolution Reactions

2021 ◽  
Author(s):  
Jing Ji ◽  
Cunjin Zhang ◽  
Shuaibo Qin ◽  
Peng Jin
Keyword(s):  
Renewable Energy ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
First Principles ◽  
Oxygen Evolution Reaction ◽  
Reduction Reaction ◽  
Two Dimensional ◽  
Energy Applications ◽  
Hydrogen Evolution Reactions

The oxygen evolution reaction (OER), oxygen reduction reaction (ORR), and hydrogen evolution reaction (HER) all have attracted much attention due to their utmost importance for clean and renewable energy applications....

scholarly journals Catalytic synergy effect of MoS2/reduced graphene oxide hybrids for a highly efficient hydrogen evolution reaction

RSC Advances ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. 5480-5487 ◽  
Author(s):  
Jung Eun Lee ◽  
Jaemin Jung ◽  
Taeg Yeoung Ko ◽  
Sujin Kim ◽  
Seong-Il Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electronic Transition ◽  
Catalytic Performance ◽  
Synergy Effect ◽  
Tafel Slope ◽  
Reduced Graphene ◽  
Catalytically Active

GO content tuning gradually enhanced the HER catalytic performance of the MoS2/rGO hybrids, decreasing the Tafel slope from 82 to 48 mV per decade owing to an increase of catalytically active areas and an electronic transition of MoS2.

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